I use spray bottles & rags to wash the cars and motorcycles, but I more often take the truck to a local hand wash place.
I wash the boat with a hose, but not lately, as it hasn't been off the trailer in a year now.
BTW, it's rained a bit more today, thank Heaven! & I see the news this AM filled with storms and tornadoes east of the Rockies. Texas is certainly getting pummeled.
Not here though. We got some gentle rains and a bit of snow is falling on the peaks. There was a small hail but no more.
2 more cisterns are in the works for me. If the lawn dies I'll re-sod someday, but if my trees die I'll be very sad. I have a shower & dishwasher pouring water down the sewer so I've got to get that dishwasher and shower plumbed to the back lawns now!
I don't think I can replace 100% of the water I was using on the lawns & trees, but what I can do will save us some real cash in the long run. If the drought continues, water prices will just go up and up here.
Starbucks gets their "Ethos" bottled water from Modesto CA city water, but too $$$ & so is switching to Pennsylvania where they can't give it away fast enough today.
The price will not reduce however. There's all that shipping you know.
(Disclaimer: I don't care about Starbucks & I don't go to Starbucks & in fact I don't drink coffee at all. I switched to tea about 10 years ago.)